Oil-burner.



F- H. BARRON.

OIL BURNER.

APPLICATION nuzn JULY 12, 1915. I

LQUMW G. Patented Oct. 31,1916.

i FREDERICK H. BAREUN, 0F EVERETT, WASHINGTON.

OIL-BURNER.

rename.

Speciflean of otters Patent. Pat gmtmdl @qgflj. 3t; yuan,

Application filed Jl'uly 12, 1915. Serial No. 39AM?- To all whom it may concern:

Be it known that T, FREDERICK H. BAR- non, a citizen of the United States, and resident of Everett, Snohomish county, Washington, have invented. certain new and useful Improvements in Gil-Burners, of

which the following is a specification.

My invention relates to oil burners, and particularly to oil burners intended for such use as heating boilers and the like.

The object of my invention is to provide a simple, effective and reliable burner of cheap but durable design. which will thoroughly vaporize and atomize the oil and mix the products so as to obtain thorough combustion.

My invention comprises those features and combinations of parts which will be I specifically set forth in the claims.

In the accompanying drawings ll have shown my invention in the form which is now preferred by me.

Figure 1 is a longitudinal'section through my burner in a vertical plane. Fig. 2 is a like view showing modifications of construction. Fig. 3 is a transverse section on the line 33 of Fig. 1. Fig. 4 is a transverse section on the line 44 of Fig. 2, and Fig. 5 is a section on a central horizontal line of the construction shown in Fig. 2.

The foundation member of my burner is a casing or base 1, which resembles a cross- 'l' in having four openings adapted for the connection of as many pipes or like ele-- ments. One of these openings is constructed for the external connection of the steam supply pipe 2 and the internal connection of the steam discharging nozzle and oil vaporizing member 5. To this end it is preferably provided with the threaded external sleeve 10 and the internal sleeve 11.

The steam discharging nozzle and oil vaporizing member 5, in the type shown in Fig. 1, has a threaded end by which it is secured in sleeve 11 to form a continuation of the steam supply pipe. The main body of this nozzle member has a bore or internal channel which is preferably widened toward its upper side, giving what is essentially a broad flat surface 51.

At each side of this surface 51, are upwardly extending flanges 52, forming a trough, through which the oil flows to the free end, where it flows down over the orifice 53 through which the steam, which is preferably highly superheated, is discharged, thereby atomizing all oil which has not previously been vaporized by the heat conveyed thereto from the steam through the walls of the trough.

The steam discharge orifice 53 is preferablyslightly tapered,.the large end being outward and is much smaller in area than the area of the channel in the body .of the nozzle. This taper produces a fan-like expansion of the mixture. Preferably the angle of this taper should be such that the extension of its lines would lie a little inside. the mouth of the outer casing 4. r

The oil is supplied through the pipe 3 which is connected with the sleeve 12, surrounding another of the openings in the easmg base 1. Between pipe 3 and the trough, I prefer to place a nipple 6, having its lower end extending between the flanges 52, but terminating above the bottom 51 of the trough. llt may be sustained at this elevation by engagement with the casing base 1, or by resting upon a shoulder of the nozzle at 60. I prefer that this nipple be a snug fit but not threaded in the casing. held down by the end of the pipe 3. The space between its lower edge and the floor of the trough will, in a measure, regulate and determine the rate of flow of the oil.

A casing extension is provided in the form of a pipe 4. which is secured in sleeve 14 and surrounds the nozzle 5, its outer end projecting to some distance beyond the end of the nozzle. This forms a mixing chamber for the air and the vapor which is formed by vaporization of the oil through the action of the heat of the steam beneath the trough. The air supply pipe 7 is connected with sleeve 13. The air flows about the trough and is thus well mixed with the vapors.

. In the form of construction shown in Figs. 2 and 4, the central steam nozzle and oil vaporizing trough is made in a slightly different manner. shown as made from a section of a seamless drawn tube. This has been formed by bending in one side to form the trough, the-parts 54: which form the side walls of the trough being hollow, which adds somewhat to the oil heating surface. At the discharge end a block 55 is inserted having therein the discharge orifice. If desired this end may have the walls brought closely enough together to obtain the right reduction in area Without employing any inserted block. I also pre- This member is here It is' fer, for some situations and uses, to reduce the width of the discharge end of the casing fl: in one direction, and to increase it in the other, as has been shown in Figs. 2 and 5. This construction makes a fan shaped flame and would be used where such a flame is desired.

The formation of the fan shape of the flame may be assisted by placing narrow blades 41 in the discharge opening 40, these being varied in angular position by giving a greater deflecting angle to those nearer the ends of the opening.

In use the oil flows throughout the length of the trough formed by the flanges 52, 54,

and is exposed to the heat of the superheated steam within the nozzle 5. ,The air delivered through the pipe 7 is also preferably heated, the hotter the better, and this flowing about the trough containing the oil further assists -in vaporizing the oil.

ternal attachment of a steam supply pipe and the internal attachment of a nozzle longitudinal bore and having member, the axis of said latter opening intersecting the axis of the oil supply, a nozzle member having an end adapted for internal attachment to the casing at its respective opening, and projecting to some distance therefrom, said nozzle having a a flat upper surface and flanges extending upwardly along the side margins thereof, that end of said trough which is over the discharge orifice of said nozzle being open and the other end beneath the oil supply connection, and a tubular casing member extending beyond the discharge end of the steam nozzle and constituting a mixing chamber.

2. In an oil burner, in combination, a hollow casing base having four openings, two of said openings being in line and at opposite sides, one being adapted for the external attachment of a steam supply pipe and the internal attachment of a nozzle member, the other being of larger size and adapted for the attachment of a mixing casing to surround the nozzle member, said nozzle member having a longitudinal bore, and longitudinal flanges forming a superposed trough, one of the other openings being over the inner end of said trough and adapted for the attachment of an oil supply pipe, and a nipple extendin downward from said oil supply pipe and etween the side flanges of the trough.

In testimony whereof I have hereunto affixed my signature this 30th day of June, 1915.

FREDERICK H. BARRON. 

